When was your last physical and full blood work? Hormones, Thyroid, lack of certain vitamins can all cause symptoms that can be a symptoms of Bipolar or any mental illness..

Its ALWAYS best to rule out any possible physical illness. Then the next step would be to see a Psychiarist for a full work up, and Most Pdocs will not give you a diagnosis at the first appt. many Pdocs like to try medication(s) to see if it helps you. Bipolar is not a label you want unless you really do infact have it, It can keep you from certain jobs etc..

My Advice rule out anything physical first.